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Table 3 Corneal aberrations (μm) at a 4 mm optical zone 12 months after surgery

From: Ultrathin Descemet stripping automated endothelial keratoplasty versus Descemet membrane endothelial keratoplasty: a fellow-eye comparison

 

UT-DSAEK

DMEK

p

HOAs total

0.38 ± 0.09

0.29 ± 0.10

0.01*

HOAs front

0.27 ± 0.08

0.25 ± 0.09

0.89

HOAs back

0.24 ± 0.13

0.13 ± 0.04

0.001**

Astigmatism total

0.45 ± 0.26

0.41 ± 0.17

0.97

Astigmatism front

0.40 ± 0.15

0.35 ± 0.14

0.23

Astigmatism back

0.22 ± 0.07

0.16 ± 0.06

0.01*

Coma total

0.28 ± 0.06

0.20 ± 0.07

< 0.001**

Coma front

0.20 ± 0.06

0.16 ± 0.06

0.20

Coma back

0.12 ± 0.08

0.05 ± 0.02

0.003**

Spherical aberration total

0.07 ± 0.04

0.05 ± 0.03

0.16

Spherical aberration front

0.07 ± 0.04

0.06 ± 0.02

0.40

Spherical aberration back

0.04 ± 0.03

0.02 ± 0.01

0.18

  1. P value was assessed by the Wilcoxon signed rank test (non-parametric); UT-DSAEK= ultra-thin Descemet stripping automated endothelial keratoplasty; DMEK= Descemet membrane endothelial keratoplasty; HOAs= high-order aberrations; *p < 0.05; **p < 0.01. Data are presented as mean ± standard deviation (SD). All values are in micrometers